Evidence map›Paper›PMID 33123736›Full record

ArticleNeuro-oncology2021

Brain exposure of the ATM inhibitor AZD1390 in humans-a positron emission tomography study.

Aurelija Jucaite, Per Stenkrona, Zsolt Cselényi, Serena De Vita, Nuria Buil-Bruna, Katarina Varnäs, Alicia Savage, Andrea Varrone, Peter Johnström, Magnus Schou and 10 more

Open access · bronzeAbstract readClinical Trial, Phase I
In one paragraph

Article in Neuro-oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 2 pooled it
3.1field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

30 citing papers in PubMed, 2 syntheses or guidelines pooled it, 65 citations in OpenAlex.

  1. Pooled it
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  15. ATM-Inhibitor AZD1390 Is a Radiosensitizer for Breast Cancer CNS Metastasis.Clinical cancer research : an official journal of the American Association for Cancer Research · 2023
    Article
  16. A new wave of innovations within the DNA damage response.Signal transduction and targeted therapy · 2023
    Review
  17. Discovery of [1,2,3]Triazolo[4,5-ACS medicinal chemistry letters · 2023
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

20 authors at 5 institutions in 3 countries.

Aurelija JucaitePET Science Centre, Precision Medicine and Biosamples, R&D, AstraZeneca, Stockholm, Sweden.
Per StenkronaDepartment of Clinical Neuroscience, Centre for Psychiatry Research, Karolinska Institutet and Stockholm County Council, Stockholm, Sweden.
Zsolt CselényiPET Science Centre, Precision Medicine and Biosamples, R&D, AstraZeneca, Stockholm, Sweden.
Serena De VitaOncology R&D, AstraZeneca, Boston, Massachusetts, USA.
Nuria Buil-BrunaClinical Pharmacology and Quantitative Pharmacology, Clinical Pharmacology and Safety Sciences, R&D, AstraZeneca, Cambridge, UK.
Katarina VarnäsDepartment of Clinical Neuroscience, Centre for Psychiatry Research, Karolinska Institutet and Stockholm County Council, Stockholm, Sweden.
Alicia SavageOncology R&D, AstraZeneca, Cambridge, UK.
Andrea VarroneDepartment of Clinical Neuroscience, Centre for Psychiatry Research, Karolinska Institutet and Stockholm County Council, Stockholm, Sweden.
Peter JohnströmPET Science Centre, Precision Medicine and Biosamples, R&D, AstraZeneca, Stockholm, Sweden.
Magnus SchouPET Science Centre, Precision Medicine and Biosamples, R&D, AstraZeneca, Stockholm, Sweden.
Chris DavisonOncology R&D, AstraZeneca, Cambridge, UK.
Andy SykesOncology R&D, AstraZeneca, Cambridge, UK.
Venkatesh Pilla ReddyOncology R&D, AstraZeneca, Cambridge, UK.
Matthias HochClinical Pharmacology and Quantitative Pharmacology, Clinical Pharmacology and Safety Sciences, R&D, AstraZeneca, Cambridge, UK.
Ana Vazquez-RomeroDepartment of Clinical Neuroscience, Centre for Psychiatry Research, Karolinska Institutet and Stockholm County Council, Stockholm, Sweden.
Mohammad Mahdi MoeinDepartment of Clinical Neuroscience, Centre for Psychiatry Research, Karolinska Institutet and Stockholm County Council, Stockholm, Sweden.
Christer HalldinDepartment of Clinical Neuroscience, Centre for Psychiatry Research, Karolinska Institutet and Stockholm County Council, Stockholm, Sweden.
Melinda S MerchantOncology R&D, AstraZeneca, Boston, Massachusetts, USA.
Martin PassOncology R&D, AstraZeneca, Cambridge, UK.
Lars FardePET Science Centre, Precision Medicine and Biosamples, R&D, AstraZeneca, Stockholm, Sweden.
AstraZeneca (United Kingdom) · GBStockholm County Council · SEKarolinska Institutet · SEAstraZeneca (Sweden) · SEAstraZeneca (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe protein kinase ataxia telangiectasia mutated (ATM) mediates cellular response to DNA damage induced by radiation. ATM inhibition decreases DNA damage repair in tumor cells and affects tumor growth. AZD1390 is a novel, highly potent, selective ATM inhibitor designed to cross the blood-brain barrier (BBB) and currently evaluated with radiotherapy in a phase I study in patients with brain malignancies. In the present study, PET was used to measure brain exposure of 11C-labeled AZD1390 after intravenous (i.v.) bolus administration in healthy subjects with an intact BBB.

methodsAZD1390 was radiolabeled with carbon-11 and a microdose (mean injected mass 1.21 µg) was injected in 8 male subjects (21-65 y). The radioactivity concentration of [11C]AZD1390 in brain was measured using a high-resolution PET system. Radioactivity in arterial blood was measured to obtain a metabolite corrected arterial input function for quantitative image analysis. Participants were monitored by laboratory examinations, vital signs, electrocardiogram, adverse events.

resultsThe brain radioactivity concentration of [11C]AZD1390 was 0.64 SUV (standard uptake value) and reached maximum 1.00% of injected dose at Tmax[brain] of 21 min (time of maximum brain radioactivity concentration) after i.v. injection. The whole brain total distribution volume was 5.20 mL*cm-3. No adverse events related to [11C]AZD1390 were reported.

conclusionsThis study demonstrates that [11C]AZD1390 crosses the intact BBB and supports development of AZD1390 for the treatment of glioblastoma multiforme or other brain malignancies. Moreover, it illustrates the potential of PET microdosing in predicting and guiding dose range and schedule for subsequent clinical studies.

Indexed as

Ataxia TelangiectasiaAtaxia Telangiectasia Mutated ProteinsBlood-Brain BarrierBrainCarbon RadioisotopesHumansMalePositron-Emission TomographyAtaxia Telangiectasia Mutated ProteinsATM protein, humanCarbon Radioisotopesataxia telangiectasia mutatedAZD1390blood-brain barrierglioblastomapositron emission tomography

Identifiers

PMID33123736
PMCPMC8041329
OpenAlexW3097439757

What Socratic holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.